A Coefficient Related to Some Geometric Properties of a Banach Space

Zuo Zhanfei<sup>*</sup>; Cui Yunan

doi:10.1155/2009/934321

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A Coefficient Related to Some Geometric Properties of a Banach Space

作者：Zuo Zhanfei^*; Cui Yunan

来源：JOURNAL OF INEQUALITIES AND APPLICATIONS, 2009, 2009(1): 934321.

DOI：10.1155/2009/934321

摘要

We introduce a new coefficient as a generalization of the modulus of smoothness and Pythagorean modulus of Banach space X. Some basic properties of this new coefficient are investigated. Moreover, some sufficient conditions which imply normal structure are presented.